slip warning light on dash

[stuey]

this may be coinsidance but since i put the 20" wheels on when i do a bit of speedy cornering the slip light comes up and cuts me power....... except that my traction is 100% still there and defo not silding..... this seems to happen more often than not...................... any ideas.........??

[lomoto]

quite usual, switch the TCS off , I always do

[stuey]

shall i try the ecu reset proceedure

[lomoto]

shall i try the ecu reset proceedure

 

Why not cant hurt , but I think you'll find it will still cut in

[stuey]

do you think its anything to do with the wheel rotation speed in relation to the gearbox speed......????????

[lomoto]

do you think its anything to do with the wheel rotation speed in relation to the gearbox speed......????????

 

what size tyres have you got on ??

[stuey]

275/30/20 on the back.......... 245/35/20 on the front

[lomoto]

275/30/20 on the back.......... 245/35/20 on the front

 

thats why its slipping different profile tyres front top back

 

just switch off traction

[stuey]

differant profile but the same rollong radius......!!

 

ok i tried the ecu reset proceedur and dissconnecting the battery........... will keep u posted on any developments..............

[lomoto]

differant profile but the same rollong radius......!!

 

 

but not same differential as standard set up

[stuey]

oh. i see......!!

[t3dcf]

I changed my rims too and had the same problem, its to do with the tyre size and ratios etc.... I had to change my tyre size so that is sorted it - search for my posts and you should find what i did!

 

good luck

[stuey]

i tried all the rest proceedures......... still the same........ any more suggestions...!!

[Guest prescience]

differant profile but the same rollong radius......!!

 

 

but not same differential as standard set up

 

Not sure what you mean by that mate?

[lomoto]

differant profile but the same rollong radius......!!

 

 

but not same differential as standard set up

 

Not sure what you mean by that mate?

 

standard sizes are 245/45 and 225/45 so rolling radius's arnt the same Stuey has exactly same rolling radius front / rear ..so I'm guessing that is the probs

[Removed]

to confuse things further....

 

when i first put on my alloys (18" but wider, much wider than stock) all was ok, never had any issue of TCS and ABS kicking in prematurely, whereas now that I changed rear tyres (and not fronts) I get the TCS to kick in when not needed, mostly on fast left hand bends.

[stuey]

to confuse things further....

 

when i first put on my alloys (18" but wider, much wider than stock) all was ok, never had any issue of TCS and ABS kicking in prematurely, whereas now that I changed rear tyres (and not fronts) I get the TCS to kick in when not needed, mostly on fast left hand bends.

 

 

same here.......... mine is left or rights but not all the time........ is there anything you can do to re train the managemet system......??

[lomoto]

to confuse things further....

 

when i first put on my alloys (18" but wider, much wider than stock) all was ok, never had any issue of TCS and ABS kicking in prematurely, whereas now that I changed rear tyres (and not fronts) I get the TCS to kick in when not needed, mostly on fast left hand bends.

 

 

same here.......... mine is left or rights but not all the time........ is there anything you can do to re train the managemet system......??

 

try this.....

 

http://www.350z-uk.com/forum/viewtopic.php?t=4521

[Guest prescience]

to confuse things further....

 

when i first put on my alloys (18" but wider, much wider than stock) all was ok, never had any issue of TCS and ABS kicking in prematurely, whereas now that I changed rear tyres (and not fronts) I get the TCS to kick in when not needed, mostly on fast left hand bends.

 

Interestingly (and I had no idea until I did a spreadsheet calc. just now) a tread difference of 7mm (I know that's at the extreme) makes a 2.2% difference in rolling radius and circumference. This is significant and might explain why changing one wheel from a very low tread to new would affect the slip

[Removed]

to confuse things further....

 

when i first put on my alloys (18" but wider, much wider than stock) all was ok, never had any issue of TCS and ABS kicking in prematurely, whereas now that I changed rear tyres (and not fronts) I get the TCS to kick in when not needed, mostly on fast left hand bends.

 

Interestingly (and I had no idea until I did a spreadsheet calc. just now) a tread difference of 7mm (I know that's at the extreme) makes a 2.2% difference in rolling radius and circumference. This is significant and might explain why changing one wheel from a very low tread to new would affect the slip

 

 

you know what, that was the only thing I could think of too.

 

 

fronts will be say half way ~4mm and rears are new (say ~8mm) and that was THE only difference since the tyres are exactly the same as before.

 

ah well, empty car park here I come (will have to re-establish tread depth front-back symmetry somehow! )

[350Znismo]

I have the same problem with my 20" wheels, i just turned it off

[stuey]

to confuse things further....

 

when i first put on my alloys (18" but wider, much wider than stock) all was ok, never had any issue of TCS and ABS kicking in prematurely, whereas now that I changed rear tyres (and not fronts) I get the TCS to kick in when not needed, mostly on fast left hand bends.

 

 

same here.......... mine is left or rights but not all the time........ is there anything you can do to re train the managemet system......??

 

try this.....

 

http://www.350z-uk.com/forum/viewtopic.php?t=4521

 

 

has anyone tried this vdc recalibrate proceedure????????

[Removed]

nope can't b arsed pushing my car, go on you try it and let us know

[stuey]

ok. ive tried the reset proceedure so now i will let you know as to the results........

[M13KYF]

ok. ive tried the reset proceedure so now i will let you know as to the results........

 

nice one, it would be good to know if it's true or not